Terms and Conditions
The Polder Welcome bonus currently consists of a bonus of 50% up to €198.60 plus 200 complimentary spins on Starburst.
The minimum deposit that will trigger the bonus is €10.
This bonus has a wagering requirement of 35xbonus for the deposit bonus and 35xwinnings for the free spin winnings.
The bonus is structured so that only wagering with bonus funds, which are stacked beneath the deposited funds, counts towards the wagering requirement. This also means that bonus restrictions, do not apply while you are wagering with your deposited funds. In other words as long as you are only using deposited funds you can withdraw at any time you like.
The maximum allowed bet is €5 on any single round of play.
There is no maximum win on either the deposit bonus or the complimentary spins.
The bonus is cashable.
Deposits made via Neteller or Skrill are excluded from this bonus.
Game Weightings:
- Slots, Video Slots, Lottery, Other games 100%
- Video Poker 10%
- Table games 10%
- Live Casino 0%
Available to newly registered players only.
Every effort is made to ensure these terms are accurate and up-to-date, however we accept no responsibility for inaccuracies or errors. It is your responsibility to ensure that you confirm the terms of any promotion you accept with the operators website before you play.
Simulations
Our review will provide a value for Low Rollers, Mid Rollers and High Rollers. Each category will use the same slots game (Thunderstruck) for accurate comparison.
Low Rollers will use the minimum possible bet size (€0.09/spin), a low deposit value of €30 and a withdrawal target of 5xdeposit for play before the bonus is triggered.
Mid Rollers will use an average player bet size (€0.54/spin), an average deposit value of €50 and a withdrawal target of 5xdeposit for play before the bonus is triggered.
High Rollers will use a player bet size (€4.95/spin), a deposit value of €100 and a withdrawal target of 5xdeposit for play before the bonus is triggered.
Super High Rollers will use a player bet size (€4.95/spin), a deposit value of €397.20 and a withdrawal target of 5xdeposit for play before the bonus is triggered.
The value of the complimentary spins will be assessed first and added on to the value of the bonus at the end of simulation.
Complimentary Spins
Complimentary Spins have to be assessed in two steps. Firstly the average win for the Complimentary Spins have to be established and secondly the wagering requirement has to be assessed for that average win to find how much the player will be left with on average.
In the case of the Template complimentary spins we have 200 complimentary spins on Starburst with a value of €0.10/spin. That’s a total of 200x0.10 = €20 of wagers. The average win from the complimentary spins will simply be the total wagers multiplied by the RTP. So 20x0.961 = €19.22.
We then take the €19.22 win and assess the impact of the wagering requirement. The wagering requirement will be 19.22x35 = €672.70. We then conduct the following simulations for Low, Mid and High Roller play:
Low Roller

So the free spin value is €8.91 when placing minimum bets.
Mid Roller

Free spin value is €13.04.
High Roller

Free spin value is €13.60.
Deposit Bonus
Due to the structure of the Polder bonus where wagers with deposited funds do not count towards the wagering requirement the bonus has to be assessed in two parts: the pre-bonus wagering and the value of the bonus. Once we have conducted these simulations we work out the value of the bonus as follows:
[Expected Loss from pre-bonus play] -([Value of the bonus]x[Chance of using the bonus]) = [Average Expected Value for the bonus]
Low Roller Bonus
Using a deposit of €30 with a bonus of €15, with a wagering requirement of 15x35 = €525, a withdrawal target of 5xdeposit and a bet size of €0.09/spin we get the following results:


We now do a quick sum to calculate the overall value of the bonus:
Average Expected Value for the bonus = -€22.89 + (€7.47x0.9563) = -€15.75
Adding the free spin value on to the result above we get -€15.75 + €8.91 = -€6.84.
Mid Roller Bonus
Using a deposit of €50 with a bonus of €25, with a wagering requirement of 25x35 = €875, a withdrawal target of 5xdeposit and a bet size of €0.54/spin we get the following results:


We now do a quick sum to calculate the overall value of the bonus:
Average Expected Value for the bonus = -€18.29 + (€16.33x0.8951) = -€3.67
Adding the free spin value on to the result above we get -€3.67 + €13.04 = €9.37.
High Roller Bonus
Using a deposit of €100 with a bonus of €50, with a wagering requirement of 50x35 = €1750, a withdrawal target of 5xdeposit and a bet size of €4.95/spin we get the following results:


We now do a quick sum to calculate the overall value of the bonus:
Average Expected Value for the bonus = -€16.41 + (€37.61x0.8871) = €16.95
Adding the free spin value on to the result above we get €16.95 + €13.60 = €30.55.
Super High Roller Bonus
Using a deposit of €397.20 with a bonus of €198.60, with a wagering requirement of 198.60x35 = €6951, a withdrawal target of 5xdeposit and a bet size of €4.95/spin we get the following results:


We now do a quick sum to calculate the overall value of the bonus:
Average Expected Value for the bonus = -€133.06 + (€132.87x0.8916) = -€14.59
Adding the free spin value on to the result above we get -€14.59 + €13.60 = -€0.99.